1. <sub id="zy88n"></sub>
        1. <blockquote id="zy88n"></blockquote>
          欧美黑人又大又粗xxxxx,人人爽久久久噜人人看,扒开双腿吃奶呻吟做受视频,中国少妇人妻xxxxx,2021国产在线视频,日韩福利片午夜免费观着,特黄aaaaaaa片免费视频,亚洲综合日韩av在线

          Number of China's in-orbit BeiDou satellites reaches 39

          Source: Xinhua| 2019-09-05 18:00:17|Editor: Li Xia
          Video PlayerClose

          SHANGHAI, Sept. 5 (Xinhua) -- China's BeiDou Navigation Satellite System (BDS), a global geolocation network, currently has 39 in-orbit satellites and is expected to be completed in 2020, authorities said Wednesday.

          At present, the BDS, independently constructed and operated by China, has officially provided RNSS (Radio Navigation Satellite System) services worldwide, with a total of 39 in-orbit satellites, after high-density launches of BeiDou-3 since 2017, said Yang Jun, deputy director of China's Satellite Navigation System Management Office, at a two-day conference on aerospace technology innovation in Shanghai, which concluded on Thursday.

          China plans to send five to seven BDS satellites into space this year and two to four in 2020, which will help fully complete the BDS global network.

          Yang said the BDS has always taken innovation and development as the driving forces for its construction, providing steadily improving positioning accuracy and new functions of global short message communication, international rescue and satellite-based augmentation service.

          The navigation services based on the BDS are also changing people's lives, by being applied in e-commerce, manufacturing of mobile intelligent terminals and positioning services.

          China is promoting its integration into global navigation services, with the BDS compatible with GPS and GLONASS, and by participating in various international organizations such as the International Civil Aviation Organization and the International Maritime Organization.

          In the future, the BDS will also be further integrated with the Internet, the Internet of things, 5G and big data, according to Yang.

          China began to construct the BDS, named after the Chinese term for the Big Dipper asterism, in the 1990s. The system started serving China with its BDS-1 satellites in 2000 and started serving the Asia-Pacific region with its BDS-2 satellites in 2012.

          TOP STORIES
          EDITOR’S CHOICE
          MOST VIEWED
          EXPLORE XINHUANET
          010020070750000000000000011100001383678301
          主站蜘蛛池模板: 亚洲国产精品综合一区二区| 香蕉久久av一区二区三区 | 国产精品免费人成网站| 日本在线视频网站www色下载| √最新版天堂资源在线| 国产成人精品永久免费视频| 无码中文字幕av免费放dvd| 欧美精品中文字幕亚洲专区| 日本午夜精品一本在线观看| 精产一二三产区m553| 粗大的内捧猛烈进出小视频| 国产精品18久久久久久vr | 东京热无码一区二区三区分类视频| 在线 国产 欧美 专区| 边做边爱完整版| 国产精品网红尤物福利在线观看| 亚洲人成77777在线观 | 国产色在线 | 日韩| 毛片内射-百度| 国产内射一区亚洲| 99久久久无码国产精品不卡| 天堂网www资源在线| 非洲黑人性xxxx精品| 麻豆国产AV超爽剧情系列| www夜插内射视频网站| 久久精品国产精品国产一区| 亚洲欧美日韩国产精品一区| 亚洲AV无码片一区二区三区| 男人深夜影院无码观看| 99热在线只有精品| 亚洲一区成人av在线| 国产精品无码v在线观看| 亚洲综合天堂一区二区三区| 中文字幕人成人乱码亚洲电影| 少妇极品熟妇人妻| 天天躁夜夜躁狠狠综合边吃奶| 在线免费观看视频一区二区| 天堂男人2021av| 天堂久久久久VA久久久久| 欧美亚洲国产精品久久蜜芽| 成人午夜爽爽爽免费视频|